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Finding the Fourth Proportional to 66,751.84, 92,127.88 and 38,071.56

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Solution

The fourth proportional to 66,751.84, 92,127.88 and 38,071.56 is: 52,544.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,751.84 : 92,127.88 = 38,071.56 : x
  2. Step 2: Convert to fraction form
    66,751.84/92,127.88 = 38,071.56/x
  3. Step 3: Cross multiply
    66,751.84x = 92,127.88 × 38,071.56
  4. Step 4: Simplify right side
    66,751.84x = 3,507,452,111.09
  5. Step 5: Solve for x
    x = 3,507,452,111.09/66,751.84
  6. Step 6: Final answer
    x = 52,544.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.